CDRIVER-5924 test on Graviton #1905
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Summary
Test on Graviton with latest server
Background & Motivation
Testing Graviton is requested in DRIVERS-2436. MongoDB servers on Graviton is expected to be more common. Additional testing appears motivated by server issues encountered on Graviton. HELP-37322 references two behavior differences:
charis unsigned on ARM.-ffp-contract(which differs from clang).Neither appear specific to Graviton. (1) applies to other ARM CPUs. The C driver already tests on arm (via
ubuntu2004-arm64). (2) appears non-applicable to the C driver. Quoting https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html:The C driver specifies C99 by default. So I expect the default C build agrees with
clang. Regardless, I expect there are few floating point algorithms in the driver that would be affected.Though the server supports arm on 4.2-latest, this PR proposes only testing the latest server. The C driver already tests on ARM (via
ubuntu2004-arm64). And a patch build testing 4.2-latest servers showed no issues.